THREATPORT/VULNERABILITY/CVE-2017-8056
MEDIUM SEVERITY

CVE-2017-8056

Fireware vulnerability

CVSS
5.3
EPSS
5.1%
EPSS pct
91th
Exploited
No known
WatchGuard Fireware v11.12.1 and earlier mishandles requests referring to an XML External Entity (XXE), in the XML-RPC agent. This causes the Firebox wgagent process to crash. This process crash ends all authenticated sessions to the Firebox, including management connections, and prevents new authenticated sessions until the process has recovered. The Firebox may also experience an overall degradation in performance while the wgagent process recovers. An attacker could continuously send XML-RPC requests that contain references to external entities to perform a limited Denial of Service (DoS) attack against an affected Firebox.
Affected vendor
Watchguard
Affected product
Fireware
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Weakness type (CWE)
  • CWE-611 — XML External Entity (XXE) Reference
Published
2017-04-22

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to low impact to availability.

Its EPSS score of 5.1% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 91% of all scored CVEs.

Check your external exposure to CVE-2017-8056

  • Confirm whether Watchguard Fireware is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2017-8056.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2017-8056

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2017-8056 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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